F doc loadfiles

Summary

For #58 (closed). Adds the missing docstrings and a short section in utilities on loadFiles.

Focus

Is the new documentation understandable and better than none?

Test Environment

make doc
firefox build/doc/html/index.html

and check the new api docs and the section in "other utilities".

Check List for the Author

Please, prepare your MR for a review. Be sure to write a summary and a focus and create gitlab comments for the reviewer. They should guide the reviewer through the changes, explain your changes and also point out open questions. For further good practices have a look at our review guidelines

• All automated tests pass
• Reference related issues
• Up-to-date CHANGELOG.md (or not necessary)
• Up-to-date JSON schema (or not necessary)
• Appropriate user and developer documentation (or not necessary)
  • How do I use the software? Assume "stupid" users.
  • How do I develop or debug the software? Assume novice developers.
• Annotations in code (Gitlab comments)
  • Intent of new code
  • Problems with old code
  • Why this implementation?

Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md (or not necessary)
• Appropriate user and developer documentation (or not necessary)
• The test environment setup works and the intended behavior is reproducible in the test environment
• In-code documentation and comments are up-to-date.
• Check: Are there specifications? Are they satisfied?

For further good practices have a look at our review guidelines.

src/doc/utilities.rst

@@ -44,11 +44,11 @@ For making files available to the LinkAhead server as File entities
 <https://docs.indiscale.com/caosdb-server/specification/Fileserver.html>`_
 documentation), the LinkAhead Advanced User tools provide the
 :py:mod:`~caosadvancedtools.loadFiles` module and a
-`linkahead-loadfiles` executable. Both operate on a path as seen by
+``linkahead-loadfiles`` executable. Both operate on a path as seen by
 the LinkAhead server (i.e., a path within the Docker container in the
 typical LinkAhead Control setup) and can be further specified to
 exclude or exclude specific files. In the typical setup, where a
-directory is mounted as an extroot into the Docker container by
+directory is mounted as an *extroot* into the Docker container by
 LinkAhead control, running
 
 .. code-block:: sh